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Lecture 23: Low Dimensional Systems
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Electronic Theory of Solids
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- 1 Electronic Theory of Solids- Prof. Arghya Taraphder
- 2 Lecture 01: Free electrons: Drude Theory
- 3 Lecture 02: Weidemann Franz Law
- 4 Lecture 03: Drude Model continued: Hall Effect
- 5 Lecture 04: Schrodinger Equation: Boundary Conditions
- 6 Lecture 05: Density of States: Fermi Energy, Fermi Velocity, Density of States in 1D, 2D and 3D
- 7 Lecture 06: Properties of Degenerate Fermi Gas
- 8 Lecture 07:
- 9 Lecture 08:
- 10 Lecture 09:
- 11 Lecture 10: Variational Method: Molecular Orbitals, Bonding and anti-bonding Orbitals
- 12 Lecture 11: Bonding and Band Formation(LCAO)
- 13 Lecture 12: Bonding and Band Formation(LCAO) (Contd.)
- 14 Lecture 13: Bloch's Theorem
- 15 Lecture 14: Proof of Bloch's Theorem
- 16 Lecture 15: N atoms Solid
- 17 Lecture 16: Brillouin Zones
- 18 Lecture 17: Tight binding: lattice with a basis
- 19 Lecture 18: Fermi Surfaces
- 20 Lecture 19: Lattice with basis:Energy Spectrum
- 21 Lecture 20: Energy spectrum (Contd.)
- 22 Lecture 21: Graphene and Fermi Surfaces
- 23 Lecture 22: Fermi Surfaces Instabilities
- 24 Lecture 23: Low Dimensional Systems
- 25 Lecture 24: Integer Quantum Hall Effect (IQHE)
- 26 Lecture 25: Integer Quantum Hall Effect Continued
- 27 Lecture 26: Electron in a Strong Magnetic Field and IQHE
- 28 Lecture 27: Spintronics: Introduction and Applications
- 29 Lecture 28: Magnetism
- 30 Lecture 29: Magnetism: Quantum Theory
- 31 Lecture 30: Hund's Rule
- 32 Lecture 31: Curie's Law and Van Vleck Paramagnetism
- 33 Lecture 32: Curie's law for any J, Susceptibility
- 34 Lecture 33: Susceptibility and Thermal Properties
- 35 Lecture 34: Adiabatic Demagnetisation
- 36 Lecture 35: Pauli Paramagnetism
- 37 Lecture 36: Paramagnetism of metals
- 38 Lecture 37: Exchange interaction for 2 electrons
- 39 Lecture 38: Exchange interactions of different types
- 40 Lecture 39: Magnetic Order
- 41 Lecture 40: Magnetic Order of different types & Heisenberg model
- 42 Lecture 41: Ising Model
- 43 Lecture 42: Mean Field Theory
- 44 Lecture 43: Spontaneous magnetisation & 1D Ising Model
- 45 Lecture 44: Symmetries of Ising model, Exact Solution
- 46 Lecture 45: Ferromagnetic Heisenberg Model
- 47 Lecture 46: Ground State & Magnons / Excitations
- 48 Lecture 47: Superconductivity
- 49 Lecture 48: London Equation
- 50 Lecture 49: Meisner Effect from London Equation
- 51 Lecture 50: Cooper problem
- 52 Lecture 51: Instability of the Fermi Surface
- 53 Lecture 52: BCS Theory Introduction
- 54 Lecture 53: BCS Theory, Excitation Spectrum
- 55 Lecture 54: BCS
- 56 Lecture 55: Tunneling and Ginzberg Landau Theory
- 57 Lecture 56: Electrodynamics of Superconductivity
- 58 Lecture 57: Type II superconductors
- 59 Lecture 58: Josephson junction
- 60 Lecture 59: Vortices, SQUID, Quantum Supremacy & Qubits
- 61 Lecture 60: Topological state of matter, XY Model, Topological Insulators
